[Amps] MRF141G

[Steve Thompson]

kg7hf at comcast.net wrote:
> Hello everyone,
> Any idea how I can test an MRF141G?  Preferably out of circuit as I don't know if other components are damaged.
> thanks.
Simple tests that should spot a dead device:

Using a DVM on high resistance range (1-2M is ok) gate to source and 
gate to drain should show 'off scale' resistance both ways.

DVM on diode setting, short gate to source. + on drain, - on source 
should show open, - on drain, + on source should show a diode drop.

Still on diode setting, + on drain, - on source. Short gate to drain, 
DVM should show open. Remove the gate source short and connect a 9V 
battery - to source, + to gate for a moment. The DVM should read close 
to short, and continue to read that for at least seconds, ideally 
minutes, after the battery is removed and the gate left floating.

Steve